The conventional versus the new radiological contrast media. Cost-benefit analysis and medicolegal implications

New iodinated radiological contrast media, which are safer but much more expensive than the conventional ones, have been introduced. Since the financial implications are considerable a compromise between cost and safety is inevitable. It is therefore recommended that, at present, the conventional media be used routinely and the new media be reserved for potentially painful examinations and for patients at higher risk. Should a question of wrongfulness or negligence concerning the use of contrast media be considered by our courts, they will undoubtedly be influenced by what is considered 'common practice' and 'accepted practice' within a medical specialty and that may be co-determined by socio-economic considerations.